Shoulder-to-shoulder (7)
I believe the answer is:
abreast
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shoulder-to-shoulder</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for abreast that I've seen before include "Side by side; keeping pace" , "On a level together" , "Familiar" , "acquainted" , "Alongside one another and facing the same way" .)